Method for preparation of 2'-deoxy-2', 2'-difluoro-beta-cytidine or pharmaceutically acceptable salts thereof by using 1,6-anhydro-beta-D-glucose as raw material
申请人:Gong Chen
公开号:US20060003963A1
公开(公告)日:2006-01-05
The present invention provides a method for preparation of 2′-deoxy-2′,2′-difluoro-β-cytidine or pharmaceutically acceptable salt thereof, comprising starting from 1,6-anhydro-β-D-glucose as raw material, oxidizing, and fluorinating to obtain 2-deoxy-2,2-difluoro-D-ribofuranose as intermediate. The 2′-deoxy-2′,2′-difluoro-β-cytidine was finally prepared from the intermediate of 2-deoxy-2,2-difluoro-D-ribofuranose. The method is simple in operation and has a high yield. The method can effectively be used in large-scale production.
本发明提供了一种制备2'-去氧-2',2'-二氟-β-胞苷或其药学上可接受的盐的方法,包括以1,6-脱水-β-D-葡萄糖为原料,经氧化和氟化得到2-去氧-2,2-二氟-D-核糖呋喃糖作为中间体。最终从2-去氧-2,2-二氟-D-核糖呋喃糖的中间体制备出2'-去氧-2',2'-二氟-β-胞苷。该方法操作简单,产率高,能有效地用于大规模生产。